Energy-saving anti-explosion nitriding furnace

Abstract

The utility model relates to the field of nitriding furnaces, and discloses an energy-saving anti-explosion nitriding furnace which comprises a furnace body, a furnace cover is arranged on the upper surface of the furnace body, a plurality of circulating mechanisms are arranged in the furnace body, each circulating mechanism comprises a fixing frame and an air blower arranged in the fixing frame, and the air blower is arranged in the furnace body. A plurality of exhaust pipes are fixedly connected to the lower end of the outer wall of the furnace body, filter cartridges are fixedly connected to the upper surfaces of the fixing frames, first gas conveying pipes are fixedly connected to the sides, close to the furnace body, of the outer walls of the filter cartridges, and second gas conveying pipes are fixedly connected to the sides, away from the filter cartridges, of the first gas conveying pipes. Compared with most existing anti-explosion nitriding furnaces, the energy-saving anti-explosion nitriding furnace has the advantages that the cooling mechanism is arranged, the three sections of cooling pipes are connected through the shunt valve, and the opening and closing of different sections of cooling pipes and the water quantity in the pipes are controlled through the controller, so that the nitriding furnaces at different positions are accurately cooled, the atmosphere in the furnace is better controlled, and the service life of the nitriding furnace is prolonged. And the nitriding effect is optimized.

Description

TECHNICAL FIELD

[0001] The utility model relates to nitrogenization furnace field especially relates to an energy -conserving type explosion -proof nitrogenization furnace. BACKGROUND

[0002] The explosion -proof nitrogenization furnace is a kind of nitrogenization equipment specially designed to prevent explosion risk due to high temperature, high pressure or chemical reaction in the nitriding process, and the energy -conserving type nitrogenization furnace adopts high -efficient energy -saving technology, reduces energy consumption while maintaining the nitriding treatment effect, can improve the high fatigue limit of workpiece and good wear resistance.

[0003] Traditional partial explosion -proof nitrogenization furnace passes ammonia into nitrogenization furnace to carry out nitriding, but gas is not evenly distributed in the nitrogenization furnace, leading to uneven nitriding, and part of nitrogenization furnace is cooled by natural cooling after nitriding is completed, which can lead to slow cooling speed, and lead to long time in high temperature state in nitrogenization furnace, aggravate energy consumption and wear, thus a new scheme is needed to solve this problem.

[0004] Therefore, the person skilled in the art provides an energy -conserving type explosion -proof nitrogenization furnace to solve the problems in the above background art. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at solving the shortcomings in the prior art, and provides an energy -conserving type explosion -proof nitrogenization furnace, compared with traditional explosion -proof nitrogenization furnace, the energy -conserving type explosion -proof nitrogenization furnace is provided with circulating mechanism, and the air in the nitrogenization furnace is extracted, returns to the nitrogenization furnace after filtering, and is injected back into the furnace body through the air hole, the circulating gas can be filtered, the quality of nitriding is guaranteed, and cooling mechanism is arranged, three section cooling pipes are connected by water distribution valve, and the opening and closing of different section cooling pipes and water quantity in pipe are controlled by controller, so that the nitrogenization furnace at different positions is cooled accurately.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] An energy -conserving type explosion -proof nitrogenization furnace, including the furnace body, the upper surface of the furnace body is provided with furnace cover, the inside of the furnace body is provided with a plurality of circulating mechanisms, the circulating mechanism includes fixed frame and the air blower that sets up in the fixed frame, the lower end of the furnace body outer wall is fixedly connected with a plurality of air extraction pipes, the upper surface of the fixed frame is fixedly connected with filter cartridge;

[0008] The side of the filter cartridge outer wall close to the furnace body is fixedly connected with first gas pipe, the side of the first gas pipe away from the filter cartridge is fixedly connected with second gas pipe, the inner wall of the furnace body is fixedly connected with inner bag, the outer wall of the inner bag is provided with cooling mechanism, the cooling mechanism includes water pump, the output of the water pump is fixedly connected with water distribution valve, the outer wall of the inner bag is provided with a plurality of cooling pipes.

[0009] Through the technical scheme, the energy-saving explosion-proof nitriding furnace is provided with a circulating mechanism to circulate the gas in the furnace, and the gas is uniformly distributed in the furnace. Meanwhile, a cooling mechanism is arranged, and the controller is used to precisely cool the nitriding furnace, so that the atmosphere in the furnace is better controlled, and the energy consumption in the furnace is reduced.

[0010] Further, one end of the exhaust pipe away from the furnace body is fixedly connected with the air inlet pipe of the air blower, and the air outlet pipe of the air blower is fixedly connected with the filter cartridge.

[0011] Through the technical scheme, the exhaust pipe is arranged to facilitate the air blower to exhaust the gas in the furnace and filter the gas through the filter cartridge.

[0012] Further, the pipe body of the second gas conveying pipe is provided with a plurality of air holes.

[0013] Through the technical scheme, the circulated gas is uniformly distributed in the furnace through the air holes, and the nitriding efficiency is improved.

[0014] Further, the front end outer wall of the furnace body is fixedly connected with a controller.

[0015] Through the technical scheme, the controller is used to precisely cool the inner container of the cooling mechanism, and the atmosphere in the furnace is better controlled.

[0016] Further, one side of the upper surface of the furnace cover is fixedly connected with an ammonia gas supply pipe and an air inlet pipe, respectively, and the side of the upper surface of the furnace cover away from the ammonia gas supply pipe and the air inlet pipe is fixedly connected with an exhaust pipe.

[0017] Through the technical scheme, the ammonia gas supply pipe is arranged to facilitate the introduction of ammonia gas for nitriding reaction, the air inlet pipe and the exhaust pipe are arranged to facilitate the introduction of air to assist the nitriding reaction, and the exhaust gas in the furnace is discharged.

[0018] Further, the lower surface of the furnace cover is fixedly connected with an arrangement rack.

[0019] Through the technical scheme, the arrangement rack is arranged to fix the workpieces to be nitrided.

[0020] Further, the water pump is fixedly connected to one side of the upper surface of the fixing rack close to the furnace body.

[0021] Through the technical scheme, the water pump is arranged to facilitate the connection of external cooling water to cool the inner container.

[0022] Further, one end of the cooling pipe is fixedly connected with a water distribution valve.

[0023] Through the technical scheme, the controller is used to control the water distribution valve to precisely cool the inner container.

[0024] The utility model has the advantages of the following:

[0025] 1、The utility model discloses an energy -conserving type explosion -proof nitriding furnace, compared to most energy -conserving type explosion -proof nitriding furnaces, the energy -conserving type explosion -proof nitriding furnace is provided with a circulating mechanism, which can extract the air in the nitriding furnace, return to the nitriding furnace after filtration, and spray back into the furnace body through the air holes, which not only makes the gas uniformly distributed in the furnace body, improves the nitriding efficiency and reduces the production cost, but also filters the circulating gas to ensure the quality of nitriding.

[0026] 2、The utility model discloses an energy -conserving type explosion -proof nitriding furnace, compared to most energy -conserving type explosion -proof nitriding furnaces, the energy -conserving type explosion -proof nitriding furnace is provided with a cooling mechanism, which is connected with three section cooling pipes through a water distribution valve, and the opening and closing of different section cooling pipes and the water quantity in the pipes are controlled by a controller, so that the nitriding furnace at different positions can be accurately cooled, the atmosphere in the furnace can be better controlled, and the nitriding effect is optimized. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a structure schematic view of the energy -conserving type explosion -proof nitriding furnace.

[0028] Figure 2 It is a sectional view of the energy -conserving type explosion -proof nitriding furnace.

[0029] Figure 3 It is a structure schematic view of the cooling mechanism in the energy -conserving type explosion -proof nitriding furnace.

[0030] Figure 4 It is a structure schematic view of the circulating mechanism in the energy -conserving type explosion -proof nitriding furnace.

[0031] Figure 5 It is a front view of the arrangement frame in the energy -conserving type explosion -proof nitriding furnace.

[0032] Legend:

[0033] 1, furnace body;2, furnace cover;3, inner bag;4, controller;5, arrangement frame;

[0034] 6, circulating mechanism;601, fixed frame;602, air blower;603, air extraction pipe;604, first gas pipe;605, filter cartridge;606, second gas pipe;607, air hole;

[0035] 7, cooling mechanism;701, water pump;702, water distribution valve;703, cooling pipe;

[0036] 8, ammonia gas supply pipe;9, air inlet pipe;10, exhaust pipe. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0038] One embodiment provided by the utility model:

[0039] With reference to Figure 1 and Figure 2 , an energy-saving explosion-proof nitriding furnace, comprising a furnace body 1, the upper surface of the furnace body 1 is provided with a furnace cover 2, the inside of the furnace body 1 is provided with a plurality of circulating mechanisms 6, the circulating mechanism 6 comprises a fixing frame 601 and a blower 602 arranged in the fixing frame 601, a plurality of air extraction pipes 603 are fixedly connected to the lower end of the outer wall of the furnace body 1, the upper surface of the fixing frame 601 is fixedly connected with a filter cartridge 605;

[0040] The outer wall of the filter cartridge 605 is fixedly connected with a first gas conveying pipe 604 on one side close to the furnace body 1, the side of the first gas conveying pipe 604 away from the filter cartridge 605 is fixedly connected with a second gas conveying pipe 606, the inner wall of the furnace body 1 is fixedly connected with an inner container 3, the outer wall of the inner container 3 is provided with a cooling mechanism 7, the cooling mechanism 7 comprises a water pump 701, the output end of the water pump 701 is fixedly connected with a water distribution valve 702, the outer wall of the inner container 3 is provided with a plurality of cooling pipes 703.

[0041] The energy-saving explosion-proof nitriding furnace circulates the gas in the furnace through the circulating mechanism 6, makes the gas uniformly distributed in the furnace, simultaneously sets the cooling mechanism 7, and precisely cools the nitriding furnace through the controller 4, so that the atmosphere in the furnace is better controlled, and the energy consumption in the furnace is reduced.

[0042] With reference to Figure 1 and Figure 4 , one end of the air extraction pipe 603 away from the furnace body 1 is fixedly connected with the air inlet pipe of the blower 602, the air outlet pipe of the blower 602 is fixedly connected with the filter cartridge 605, the air extraction pipe 603 is arranged, so that the blower 602 can extract the gas in the furnace and filter the gas through the filter cartridge 605, a plurality of air holes 607 are formed in the pipe body of the second gas conveying pipe 606, the circulated gas is uniformly distributed in the furnace through the air holes 607, and the nitriding efficiency is improved;

[0043] With reference to Figure 1 , Figure 2 and Figure 5The front end outer wall of the furnace body 1 is fixedly connected with a controller 4, the inner container 3 is precisely cooled by the controller 4 controlling the cooling mechanism 7, the atmosphere in the furnace is better controlled, one side of the upper surface of the furnace cover 2 is fixedly connected with an ammonia gas supply pipe 8 and an air inlet pipe 9 respectively, the side of the upper surface of the furnace cover 2 away from the ammonia gas supply pipe 8 and the air inlet pipe 9 is fixedly connected with an exhaust pipe 10, the ammonia gas supply pipe 8 is arranged to facilitate the introduction of ammonia gas for nitriding reaction, the air inlet pipe 9 and the exhaust pipe 10 are arranged to facilitate the introduction of air to assist in nitriding reaction and the exhaust of waste gas in the furnace, the lower surface of the furnace cover 2 is fixedly connected with an arrangement rack 5, the arrangement rack 5 is arranged to facilitate the fixation of workpieces needing nitriding;

[0044] With reference to Figure 1 and Figure 3 The water pump 701 is fixedly connected to the upper surface of one side of the fixed rack 601 close to the furnace body 1, the water pump 701 is arranged to facilitate the connection of external cooling water, the cooling of the inner container 3, one end of the cooling pipe 703 is fixedly connected with the water distribution valve 702, the controller 4 controls the water distribution valve 702 to precisely cool the inner container 3.

[0045] Working principle: the workpieces needing nitriding are arranged on the arrangement rack 5, ammonia gas is introduced through the ammonia gas supply pipe 8, the nitriding furnace is heated through the heating element, thereby the workpieces needing nitriding are nitrided, during the nitriding process, the air blower 602 is started, the gas in the furnace is extracted through the air extraction pipe 603, then the gas is introduced into the filter cartridge 605, after the filtration of the filter cartridge 605, the gas is discharged from the first gas conveying pipe 604 and enters the second gas conveying pipe 606, and is sprayed into the furnace through the air holes 607, so that the gas is uniformly distributed in the furnace, after the nitriding operation is completed, cooling water is connected through the water pump 701, and enters the cooling pipes 703 through the water distribution valve 702, the controller 4 controls the opening and closing of the different sections of the cooling pipes 703 and the water inflow, thereby the inner container 3 is precisely cooled, and the nitriding effect is ensured.

[0046] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, shall be included in the protection scope of the present application.

Claims

1. An energy-saving explosion-proof nitriding furnace comprising a furnace body (1), characterized in that: The upper surface of the furnace body (1) is provided with a furnace cover (2), the inside of the furnace body (1) is provided with a plurality of circulating mechanisms (6), the circulating mechanism (6) comprises a fixing frame (601) and a blower (602) arranged in the fixing frame (601), the lower end of the outer wall of the furnace body (1) is fixedly connected with a plurality of air exhaust pipes (603), and the upper surface of the fixing frame (601) is fixedly connected with a filter cylinder (605); The outer wall of the filter cylinder (605) is fixedly connected with a first gas conveying pipe (604) near one side of the furnace body (1), the side, away from the filter cylinder (605), of the first gas conveying pipe (604) is fixedly connected with a second gas conveying pipe (606), the inner wall of the furnace body (1) is fixedly connected with an inner container (3), the outer wall of the inner container (3) is provided with a cooling mechanism (7), the cooling mechanism (7) comprises a water pump (701), the output end of the water pump (701) is fixedly connected with a water distribution valve (702), and the outer wall of the inner container (3) is provided with a plurality of cooling pipes (703).

2. The energy-saving explosion-proof nitriding furnace according to claim 1, characterized in that: The end, away from the furnace body (1), of the air exhaust pipe (603) is fixedly connected with the air inlet pipe of the blower (602), and the air outlet pipe of the blower (602) is fixedly connected with the filter cylinder (605).

3. The energy-saving explosion-proof nitriding furnace according to claim 1, characterized in that: A plurality of air holes (607) are formed in the pipe body of the second gas conveying pipe (606).

4. The energy-saving explosion-proof nitriding furnace according to claim 1, characterized in that: The front end of the outer wall of the furnace body (1) is fixedly connected with a controller (4).

5. The energy-saving explosion-proof nitriding furnace according to claim 1, characterized in that: The upper surface of the furnace cover (2) is fixedly connected with an ammonia gas supply pipe (8) and an air inlet pipe (9) on one side, respectively, and the upper surface of the furnace cover (2) is fixedly connected with an exhaust pipe (10) away from the ammonia gas supply pipe (8) and the air inlet pipe (9).

6. The energy-saving explosion-proof nitriding furnace according to claim 1, characterized in that: The lower surface of the furnace cover (2) is fixedly connected with an arrangement frame (5).

7. The energy-saving explosion-proof nitriding furnace according to claim 1, characterized in that: The water pump (701) is fixedly connected to one side of the upper surface of the fixing frame (601) near the furnace body (1).

8. The energy-saving explosion-proof nitriding furnace according to claim 1, characterized in that: One end of the cooling pipe (703) is fixedly connected with the water distribution valve (702).

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